The right to exit a contract penalty-free will also apply for the first time to landline and TV packages bought together with broadband, meaning customers will not be locked in to a TV contract if their broadband service falls short.

As an extra protection, providers will have to give more realistic peak-time speed information at the point of sale which reflects the fact that broadband is typically not as fast during busy periods between 8pm and 10pm or 12pm to 2pm for businesses.

The protections apply whether people are switching to a new provider or changing their current package.

They cover all the major broadband firms signed up to the new code - BT, EE, Plusnet, Sky, TalkTalk and Virgin Media, which together serve around 95% of home broadband customers.

Ofcom consumer group director Lindsey Fussell said: “When you sign a contract, you should be treated fairly and know exactly what you’re getting.

“These protections mean broadband shoppers can buy with confidence. Before they sign up, customers will be told their minimum internet speed. And if companies break that promise, they’ll have to sort it out quickly, or let the customer walk away.”

Ofcom’s latest data shows that just three in 20 broadband customers proactively contacted their existing provider to renegotiate their deal last year.

It also found that those with a basic, copper broadband connection have less than a one-in-five chance of being able to stream Netflix in ultra-high definition, advising that those who were to upgrade to entry-level superfast broadband would almost certainly be able to do so.

Which? chief customer officer Sarah Threadgould said: “Unclear and confusing information about broadband speeds has been an issue for consumers for far too long, so we’re glad these measures are being introduced.

“Providers should immediately adopt these changes to ensure that customers clearly understand the minimum speeds to expect when they sign up and have the right to walk away if that provider fails to deliver.

“We will be keeping a close eye to make sure the voluntary code is working for consumers. If not, Ofcom will need to step in and take stronger action.”

Trending

Police called to drunk woman stuck in a cat flap

These are the listed buildings in Yorkshire that will be affected by HS2

Leeds United in talks over £6m deal, West Brom close in on new boss, Derby star tipped for summer exit, QPR ace refuses to discuss future - Championship rumours

The never seen before photos of Sheffield through the ages

Cows slaughtered and sold off after dog walker complaint about Peak District herd